I made the swap when i got a busted up old sweet-n-low (WS 86ish) and i rebuilt it. sounds like you fly about like I do. JUst your basic maneuvers and rolls, split S's and stuff. I love the big planes. I think they fly better. The smaller ones seem really squirrelly to me now. I've always wanted big planes just because. I haven't changed my style or anything, so the transition wasn't a big deal. The one thing I did notice was I was a lot more nervous. I still get nervous from time to time. I guess what I'm trying to say is the swap over is when it becomes available or you just decide to do it. That's my .02 worth. I don't know that I helped any with that rambling